Brake master cylinder question
#1
Instructor
Thread Starter
Brake master cylinder question
Hey guys, I'm in need of a new master cylinder on my 99 gs300, it still stops and works but I just don't feel safe with it, pedal goes way low before braking, I have read that sc430 master cylinders are interchangeable can anyone confirm this? Because I've seen them on eBay for less than the GS bmcs.
I'm going to have lexus install it for me, I read there was a pressure switch that needs to be swapped, can anyone provide a picture of the sensor, I want to make sure lexus knows to do that. Thanks for your help
I'm going to have lexus install it for me, I read there was a pressure switch that needs to be swapped, can anyone provide a picture of the sensor, I want to make sure lexus knows to do that. Thanks for your help
#2
Instructor
I would look for a proper diagnosis before replacing BMC.
Sounds like you have air in the lines or a bad brake line/hose.
Take a look at your brakes, I would at least flush the fluid...
Good luck
Sounds like you have air in the lines or a bad brake line/hose.
Take a look at your brakes, I would at least flush the fluid...
Good luck
#3
Instructor
Thread Starter
I flushed the brake fluid about a year ago and it got a little bit better but not much, never thought about checking the lines however. My car almost has 220k on it. And the weak brakes are really the only issue I have with it.
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